The Nether Soldiers kept growing in number, and more and more of them had reached the Immortal Realm. Ling Tian and the others were forced to retreat into the Defense Formation. The formation Ling Tian had set up covered a vast area, so even with every cultivator who had entered the Ancient Battlefield inside it, things did not feel crowded.
The Nether Soldiers showed no sign of giving up. They continued to swarm toward them. At that moment, the attack formation Linglong Immortal Fairy had set up unleashed its full might, killing wave after wave of Nether Soldiers with ease. It even killed some Nether Soldiers in the Immortal Realm. Once everyone learned that the formations Linglong and Ling Tian had set up could absorb attacks from outside, they all breathed a long sigh of relief.
Unlike the others, who were delighted, Ling Tian was still quite worried. He feared the Nether Soldiers might go around their formation and destroy the formations refining the deathly aura. Although the formation he had set up covered a large area, it was still much smaller than the Ancient Battlefield and could not possibly stop all the Nether Soldiers.
What reassured Ling Tian a little was that the Nether Soldiers showed no intention of going around. Instead, they swung their spears at the formation they had set up, naturally providing it with plenty of energy to kill them.
"Eh, the Nether Soldiers don't even know to go around?" Ling Tian murmured in surprise, then looked at Wu De and the others as if seeking their opinion.
"Yeah. Could it be that these Nether Soldiers have no intelligence at all?" Wu De wasn't sure. As he recalled their battles against the Nether Soldiers, he gradually grew more certain of his guess. "Maybe that's really it.